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Development of innovative aggregation inhibition strategies for amyloid proteins that cause neurodegenerative diseases

Research Project

Project/Area Number 21H02602
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47010:Pharmaceutical chemistry and drug development sciences-related
Research InstitutionWakayama Medical University

Principal Investigator

Sohma Youhei  和歌山県立医科大学, 薬学部, 教授 (10565518)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2021: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Keywordsアミロイド / タンパク質 / 神経変性疾患 / 凝集 / 阻害 / 触媒 / 酸素化 / 立体構造 / タンパク
Outline of Research at the Start

本研究は、タンパク質の凝集が原因で引き起こされる神経変性疾患(アルツハイマー病など)に対する根本的な治療法の開発を目指し、タンパク質が凝集する機能を抑制するための、革新的、多面的な方法論の開発を行うものである。具体的には、人工的な化学反応の促進によりタンパク質凝集体を無毒化する触媒を開発し、疾患治療効果を実証する。さらに、立体構造に基づく凝集阻害分子の設計を促進すべく、アミロイドオリゴマーの高次構造を明らかにする。

Outline of Final Research Achievements

Methodologies to suppress protein aggregation and accumulation, which will lead to treatments strategy for neurodegenerative diseases caused by the accumulation of amyloid, were studied. We have designed and synthesized artificial catalysts that photooxygenated amyloid (chemically add oxygen atoms under light irradiation conditions). As a result, we were able to reduce the amount of tau amyloid accumulated in the brain by non-invasively oxygenating amyloid in mouse brains. Furthermore, we have tackled to solve the higher-order structure of amyloid using organic chemistry-based methods, with the aim of promoting the design of inhibitors based on the three-dimensional structure information of amyloid. As a result, three-dimensional structure information of amyloid was obtained via chemically suppressing the aggregation dynamics through the introduction of artificial structures.

Academic Significance and Societal Importance of the Research Achievements

アミロイドタンパク質の凝集・蓄積を抑制するための革新的方法論に資する、光酸素化触媒の創製およびアミロイド立体構造の解明に成功した。特に、長波長光によってアミロイド選択的に活性化することに加え、マウス脳内でアミロイドの酸素化を促進し分解を促進するための触媒設計指針を得ることができた。さらに、得られたアミロイドの立体構造情報は、原子レベルでの阻害剤設計を可能とする点で意義深い。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (47 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 6 results) Presentation (29 results) (of which Int'l Joint Research: 3 results,  Invited: 9 results) Remarks (2 results) Patent(Industrial Property Rights) (4 results)

  • [Int'l Joint Research] IMDEA Nanociencia/Universitat Ramon Llull(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Attenuation of α-synuclein aggregation by catalytic photo-oxygenation2023

    • Author(s)
      Iwai Atsushi、Nakamura Reito、Tomizawa Ikumi、Mitsunuma Harunobu、Hori Yukiko、Tomita Taisuke、Sohma Youhei、Kanai Motomu
    • Journal Title

      Chemical Communications

      Volume: 59 Issue: 38 Pages: 5745-5748

    • DOI

      10.1039/d3cc00665d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Assays for Catalytic Photo-Oxygenation of Alzheimer Disease-Related Tau Proteins2023

    • Author(s)
      Umeda Hiroki、Sawazaki Taka、Furuta Masahiro、Suzuki Takanobu、Kawashima Shigehiro A.、Mitsunuma Harunobu、Hori Yukiko、Tomita Taisuke、Sohma Youhei、Kanai Motomu
    • Journal Title

      ACS Chemical Neuroscience

      Volume: 14 Issue: 15 Pages: 2710-2716

    • DOI

      10.1021/acschemneuro.3c00264

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rose Bengal Promoted Catalytic Amyloid-β Oxygenation by Sonoactivation2023

    • Author(s)
      Sohma Youhei、Hori Yukiko、Tomita Taisuke、Kanai Motomu、Atsumi Wataru、Kawabata Keiichi、Yamane Mina、Oi Miku、Mitsunuma Harunobu
    • Journal Title

      Synlett

      Volume: 35 Issue: 08 Pages: 920-924

    • DOI

      10.1055/a-2182-7614

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photo‐oxygenation of histidine residue inhibits α‐synuclein aggregation2023

    • Author(s)
      Nakamura Reito、Tomizawa Ikumi、Iwai Atsushi、Ikeda Tetsuo、Hirayama Kota、Chiu Yung Wen、Suzuki Takanobu、Tarutani Airi、Mano Tatsuo、Iwata Atsushi、Toda Tatsushi、Sohma Youhei、Kanai Motomu、Hori Yukiko、Tomita Taisuke
    • Journal Title

      The FASEB Journal

      Volume: 37 Issue: 12

    • DOI

      10.1096/fj.202301533r

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modular synthetic strategy for N/C‐terminal protected amyloidogenic peptides2023

    • Author(s)
      Sawazaki Taka, Sohma Youhei
    • Journal Title

      Journal of Peptide Science

      Volume: 30 Issue: 3

    • DOI

      10.1002/psc.3546

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Therapeutic strategy for neurodegenerative diseases by photooxygenation reaction using chemical catalysts2022

    • Author(s)
      相馬 洋平、金井 求
    • Journal Title

      生化学

      Volume: 94 Issue: 3 Pages: 406-410

    • DOI

      10.14952/SEIKAGAKU.2022.940406

    • ISSN
      0037-1017
    • Year and Date
      2022-06-25
    • Related Report
      2022 Annual Research Report
  • [Journal Article] Knoevenagel Condensation between 2-Methyl-thiazolo[4,5-<i>b</i>]pyrazines and Aldehydes2022

    • Author(s)
      Taka Sawazaki, Youhei Sohma, Motomu Kanai
    • Journal Title

      Chemical and Pharmaceutical Bulletin

      Volume: 70 Issue: 1 Pages: 82-84

    • DOI

      10.1248/cpb.c21-00780

    • NAID

      130008138742

    • ISSN
      0009-2363, 1347-5223
    • Year and Date
      2022-01-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photo-Oxygenation as a New Therapeutic Strategy for Neurodegenerative Proteinopathies by Enhancing the Clearance of Amyloid Proteins2022

    • Author(s)
      Tomizawa Ikumi、Nakagawa Hanako、Sohma Youhei、Kanai Motomu、Hori Yukiko、Tomita Taisuke
    • Journal Title

      Frontiers in Aging Neuroscience

      Volume: 14

    • DOI

      10.3389/fnagi.2022.945017

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Activatable iodinated BODIPYs for selective imaging and photodynamic disruption of amyloid structures in pathogenic bacterial biofilms2022

    • Author(s)
      Torra Joaquim、Sawazaki Taka、Bondia Patricia、Nonell Santi、Kanai Motomu、Sohma Youhei、Flors Cristina
    • Journal Title

      Sensors and Actuators B: Chemical

      Volume: 371 Pages: 132475-132475

    • DOI

      10.1016/j.snb.2022.132475

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Promotion in the Clearance of Aggregated Aβ In Vivo Using Amyloid Selective Photo-Oxygenation Technology2022

    • Author(s)
      Hori Yukiko、Sohma Youhei、Kanai Motomu、Tomita Taisuke
    • Journal Title

      Neuroscience Insights

      Volume: 17 Pages: 0000-0000

    • DOI

      10.1177/26331055221126179

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chemical catalyst-promoted photooxygenation of amyloid proteins2021

    • Author(s)
      Youhei Sohma, Taka Sawazaki, Motomu Kanai
    • Journal Title

      Org. Biomol. Chem.

      Volume: 19 Issue: 46 Pages: 10017-10029

    • DOI

      10.1039/d1ob01677f

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Catalysis driven by an amyloid-substrate complex2024

    • Author(s)
      Youhei Sohma
    • Organizer
      日本薬学会 第144年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 基質選択的な変換反応を促進できる新規アミロイド触媒系の開発2023

    • Author(s)
      澤崎鷹、佐々木大輔、相馬洋平
    • Organizer
      日本ケミカルバイオロジー学会 第17回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] アミロイド触媒を利用した基質選択的な変換反応2023

    • Author(s)
      澤崎鷹、佐々木大輔、相馬洋平
    • Organizer
      第17回バイオ関連化学シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 有機化学反応で細胞内を制御せよ!2023

    • Author(s)
      相馬洋平
    • Organizer
      第13回CSJ化学フェスタ2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Development of Amyloid Breakers: Catalytic Photooxygenation of Transthyretin Amyloids in vivo2023

    • Author(s)
      Mina Yamane, Moe Toyobe, Hiroki Umeda, Atsushi Iwai, Genki Kudo, Harunobu Mitsunuma, Masamitsu Okada, Mitsuharu Ueda, Yukio Ando, Takatsugu Hirokawa, Shigehiro Kawashima, Youhei Sohma, Kunitoshi Yamanaka, Motomu Kanai
    • Organizer
      国際有機化学京都会議
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AAアミロイドーシス治療を目指した光酸素化法の検証2023

    • Author(s)
      堀由起子、浅井秀一朗、渡邉謙一、相馬洋平、金井求、富田泰輔
    • Organizer
      日本認知症学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] アミロイドを活用した新規触媒系の開発と基質選択的反応への応用2023

    • Author(s)
      澤崎鷹,佐々木大輔,相馬洋平
    • Organizer
      反応と合成の進歩シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] CATALYSIS DRIVEN BY AMYLOID-SUBSTRATE COMPLEX2023

    • Author(s)
      Taka Sawazaki, Daisuke Sasaki, Youhei Sohma
    • Organizer
      60回ペプチド討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 基質選択的な変換反応を促進できる新規アミロイド触媒系の開発2023

    • Author(s)
      澤崎鷹,佐々木大輔,相馬洋平
    • Organizer
      第40回メディシナルケミストリーシンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Catalysis driven by an amyloid-substrate complex2023

    • Author(s)
      Youhei Sohma and Taka Sawazaki
    • Organizer
      ISBOC-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Non-invasive photo-oxygenation of tau amyloid against tauopathy2023

    • Author(s)
      Yukiko Hori, Takanobu Suzuki, Taka Sawazaki, Makoto Higuchi, Youhei Sohma, Motomu Kanai, Taisuke Tomita
    • Organizer
      生化学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Chemical Catalysts that Promote Removal of Brain Amyloids2023

    • Author(s)
      Youhei Sohma
    • Organizer
      The 19th AKABORI Conference 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 脳内アミロイドタンパク質の除去を促進する化学触媒2023

    • Author(s)
      相馬洋平
    • Organizer
      大阪大学蛋白質研究所セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 脳内タウアミロイドの除去を促進する化学触媒2023

    • Author(s)
      相馬洋平、 澤崎鷹、鈴木崇允、樋口真人、堀由起子、富田泰輔、 金井求
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アミロイドと基質の複合化を起点にする触媒反応の開発2023

    • Author(s)
      澤崎 鷹、佐々木 大輔、相馬 洋平
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アルツハイマー病患者由来のタウアミロイドに対する触媒的光酸素化2023

    • Author(s)
      梅田 大輝、澤崎 鷹、鈴木 崇允、古田 将大、三ツ沼 治信, 川島 茂裕、堀 由起子、富田 泰輔、相馬 洋平、金井 求
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] TDP-43の病原性構造基盤の解明に向けた翻訳後修飾体化学合成経路の構築2023

    • Author(s)
      佐々木 大輔、澤崎 鷹、相馬 洋平
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 臨床応用を指向した超音波によるAmyloid β酸素化触媒の開発研究2023

    • Author(s)
      渥美渉 川畑恵一 大井未来 三ツ沼治信 堀由起子 富田泰輔 相馬洋平 金井求
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 生体レベルでの応用を志向した高活性アミロイド光酸素化触媒の開発研究2023

    • Author(s)
      古田将大、堀由起子、富田泰輔、相馬洋平、三ツ沼治信、金井求
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 脳内のアミロイドタンパク質を除去する化学触媒2022

    • Author(s)
      相馬洋平
    • Organizer
      令和4 年度 有機合成セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Catalytic Photooxygenation of Tau Protein Amyloid2022

    • Author(s)
      Youhei Sohma, Taka Sawazaki, Takanobu Suzuki, Yukiko Hori, Taisuke Tomita, Motomu Kanai
    • Organizer
      59回ペプチド討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アミロイドに焦点を当てたペプチド化学2022

    • Author(s)
      相馬洋平
    • Organizer
      第37回関西地区ペプチドセミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 細胞内タウアミロイドを光酸素化する化学触媒の開発2022

    • Author(s)
      澤崎鷹, 鈴木崇允, 堀由起子, 富田泰輔, 相馬洋平, 金井求
    • Organizer
      反応と合成の進歩シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] パーキンソン病治療戦略を指向したαシヌクレインに対する光酸素化触媒2022

    • Author(s)
      岩井 篤志、永島 臨、中村 麗人、富澤 郁美、三ツ沼 治信、堀 由起子、富田 泰輔、相馬 洋平、金井 求
    • Organizer
      日本化学会 第102春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] タウの凝集アミロイドを対象とした光酸素化触媒の探索2022

    • Author(s)
      梅田 大輝、澤崎 鷹、鈴木 崇允、古田 将大、三ツ沼 治信、堀 由起子、富田 泰輔、相馬 洋平、金井 求
    • Organizer
      日本薬学会 第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 臨床応用を指向したトランスサイレチンアミロイドの触媒的光酸素化2022

    • Author(s)
      山根 三奈、岩井 篤志、永島 臨、三ツ沼 治信、岡田 匡充、山中 邦俊、植田 光晴、安東 由喜雄、相馬 洋平、金井 求
    • Organizer
      日本薬学会 第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 神経変性疾患治療を目指した生体内人工触媒反応2021

    • Author(s)
      相馬洋平
    • Organizer
      第53回若手ペプチド夏の勉強会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Chemical Catalyst-Promoted Photooxygenation of Amyloid Peptide In Vivo2021

    • Author(s)
      Youhei Sohma, Nozomu Nagashima, Shuta Ozawa, Masahiro Furuta, Miku Oi, Yukiko Hori, Taisuke Tomita, and Motomu Kanai
    • Organizer
      58回ペプチド討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アミロイドβ の凝集を標的とした創薬化学2021

    • Author(s)
      相馬洋平
    • Organizer
      第40回日本認知症学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Remarks]

    • URL

      https://www.wakayama-med.ac.jp/pharm/yakuhinkagaku/

    • Related Report
      2023 Annual Research Report
  • [Remarks]

    • URL

      https://www.wakayama-med.ac.jp/pharm/yakuhinkagaku/

    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] トランスサイレチンアミロイド光酸素化分解触媒2024

    • Inventor(s)
      金井求、山中邦俊、山根三奈、相馬洋平、他
    • Industrial Property Rights Holder
      金井求、山中邦俊、山根三奈、相馬洋平、他
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2024-053018
    • Filing Date
      2024
    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] アミロイド触媒を用いるアミノ基の修飾方法2023

    • Inventor(s)
      相馬洋平、澤崎鷹
    • Industrial Property Rights Holder
      相馬洋平、澤崎鷹
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-024577
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] トリアリールメタン骨格を有する光酸素化触媒、及びこれを含有する医薬 組成物2023

    • Inventor(s)
      金井求、三ツ沼治信、古田将大、富田泰輔、堀由起子、相馬洋平
    • Industrial Property Rights Holder
      金井求、三ツ沼治信、古田将大、富田泰輔、堀由起子、相馬洋平
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-032303
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] タウアミロイドを酸素化する光触媒2021

    • Inventor(s)
      金井求、相馬洋平、富田泰輔、堀由起子、澤崎鷹、鈴木崇允など
    • Industrial Property Rights Holder
      金井求、相馬洋平、富田泰輔、堀由起子、澤崎鷹、鈴木崇允など
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-195981
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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